2256615161651 has 8 divisors (see below), whose sum is σ = 2350096794000. Its totient is φ = 2164178017120.

The previous prime is 2256615161639. The next prime is 2256615161657. The reversal of 2256615161651 is 1561615166522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2256615161651 - 2¹⁰ = 2256615160627 is a prime.

It is a super-2 number, since 2×2256615161651² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2256615161596 and 2256615161605.

It is not an unprimeable number, because it can be changed into a prime (2256615161657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261117545 + ... + 261126186.

It is an arithmetic number, because the mean of its divisors is an integer number (293762099250).

Almost surely, 2^{2256615161651} is an apocalyptic number.

2256615161651 is a deficient number, since it is larger than the sum of its proper divisors (93481632349).

2256615161651 is a wasteful number, since it uses less digits than its factorization.

2256615161651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522243909.

The product of its digits is 648000, while the sum is 47.

The spelling of 2256615161651 in words is "two trillion, two hundred fifty-six billion, six hundred fifteen million, one hundred sixty-one thousand, six hundred fifty-one".